I give lessons on the 5string Banjo. There are two main styles of playing the banjo - clawhammer somtimes known as old time banjo, and Scruggs style named after the great bluegrass player Earl Scruggs who developed the three finger style of playing.
The banjo is a four-, five- or (occasionally) six-stringed instrument with a thin membrane stretched over a frame or cavity as a resonator, called the head.
The banjo is frequently associated with country, folk, Irish traditional and bluegrass music.